Telecommunication Company of Iran
Telecommunication Company of Iran (TCI) is a Tehran-based public company listed on the Tehran Stock Exchange. Founded in 1971, it provides fixed-line telephony, broadband, data and network services through a nationwide provincial structure, while mobile services are linked through MCI. TCI is a central commercial reference for fixed connectivity and telecom-dependent projects in Iran.
Market position
TCI is the principal fixed-line telecommunications operator in Iran. Historical market-share figures place its fixed-line subscriber share at approximately 99%, though no date is attached to that figure.
Operations & footprint
Products and services
Telecommunication Company of Iran provides fixed-line telephony, broadband internet, data services, network infrastructure, enterprise connectivity, and telecommunications services across Iran. Its operating profile is tied to national fixed communications, provincial telecom networks, digital infrastructure, public-service connectivity, and the backbone layer supporting businesses, households, and government-linked users.
Operations and assets
TCI operates fixed-line telecommunications networks, broadband access, data-service infrastructure and provincial telecommunications operations. The group’s operating structure includes 30 provincial subsidiaries and mobile services through MCI.
Geographic footprint
Headquartered in Tehran, with operations structured through 30 provincial telecommunications subsidiaries across Iran.
Ownership & group structure
Subsidiaries and group companies
Mobile Company of Iran (MCI); 30 provincial telecommunications subsidiaries.
Commercial and investment relevance
In the Hormuz investment graph, TCI connects fixed telecom infrastructure, enterprise data services, consumer broadband, provincial network access, public digital services, and technology-sector operating conditions. It is useful for assessing digital-infrastructure readiness, software-market scalability, enterprise connectivity, regional broadband gaps, and telecom-linked public projects. Foreign-facing analysis should verify current service coverage, regulatory obligations, ownership and subsidiary exposure, sanctions sensitivity, data-policy constraints, and network investment needs before relying on the profile commercially. TCI is a core counterparty for fixed connectivity, broadband provisioning, enterprise data links and network-infrastructure requirements. Its provincial operating structure matters for suppliers, service partners and users whose operations depend on reliable domestic telecommunications access.
Constraints, risk & compliance
Key risks and constraints
Network investment requirements, service quality and infrastructure reliability are material operating considerations for a fixed-network operator with nationwide provincial responsibilities. The company’s broad domestic telecom role also links commercial outcomes to sector regulation and network-development priorities.
Sanctions and compliance considerations
Iran’s telecommunications sector requires transaction-specific sanctions and export-control screening, particularly for network equipment, software, technical services and cross-border payment arrangements.
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Connected Intelligence
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Frequently asked questions
Direct answers to the questions most likely to arise when reviewing this profile.
What services does Telecommunication Company of Iran provide?
TCI provides fixed-line telephony, DSL and high-speed broadband, data services, network infrastructure and enterprise connectivity. Mobile services are linked through Mobile Company of Iran (MCI).
Where does Telecommunication Company of Iran operate?
TCI is headquartered in Tehran and operates through 30 provincial telecommunications subsidiaries across Iran.
Is Telecommunication Company of Iran listed?
Yes. TCI is listed on the Tehran Stock Exchange under TSE: MKBT1, ISIN IRO1MKBT0008.
Why does TCI matter to commercial partners?
TCI is a significant fixed-connectivity counterparty for broadband, enterprise data links and telecommunications infrastructure supporting businesses and public-facing digital services in Iran.